79645069 has 8 divisors (see below), whose sum is σ = 91126080. Its totient is φ = 68189856.

The previous prime is 79645063. The next prime is 79645081. The reversal of 79645069 is 96054697.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 79645069 - 2¹¹ = 79643021 is a prime.

It is a super-2 number, since 2×79645069² = 12686674032029522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79645063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 702 + ... + 12640.

It is an arithmetic number, because the mean of its divisors is an integer number (11390760).

Almost surely, 2^79645069 is an apocalyptic number.

It is an amenable number.

79645069 is a deficient number, since it is larger than the sum of its proper divisors (11481011).

79645069 is a wasteful number, since it uses less digits than its factorization.

79645069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12899.

The product of its (nonzero) digits is 408240, while the sum is 46.

The square root of 79645069 is about 8924.4086078574. The cubic root of 79645069 is about 430.2487635751.

The spelling of 79645069 in words is "seventy-nine million, six hundred forty-five thousand, sixty-nine".